Keywords : Seroprevalence

Seroprevalence of Mycoplasma gallisepticum infection in layer chickens of Bangladesh

Ahsan Raquib; Answar Uddin; S.M. Nurozzaman; Mohammod Misbah Uddin; Golam Ahsan; Md Masudur Rahman; Md Mahfujur Rahman

Iraqi Journal of Veterinary Sciences, In Press
DOI: 10.33899/ijvs.2020.127511.1506

Mycoplasma gallisepticum causes major health hazards in poultry birds in Bangladesh which results in huge economic losses every year. This study was carried out to estimate and analyze the prevalence of Mycoplasma gallisepticum (MG) infection in commercial layer chickens at Kishoreganj district of Bangladesh during the period from November 2018 to October 2019. A total of 505 serum samples from 94 commercial layer farms of Kishoreganj Sadar Upazila and Pakundia Upazila of Kishoreganj district were collected. Serum plate agglutination (SPA) was performed to detect the antibody against MG. Prevalence was found 73% in the Kishoreganj district by SPA test. MG was significantly (P<0.01) more prevalent in Pakundia Upazila 82% than Kishoreganj Sadar Upazila 61.11%. In case of season, winter season had significantly higher (X^2=30.94, p=0.000) prevalence of MG infection. In relation to age, seroprevalence of MG infection was highest 78% in birds of 65 weeks’ age and lowest 71% in 6-25 weeks’ age birds. Any significant (P>0.05) association was not found between flock size and seroprevalence of MG. Seroprevalence was highest in flock containing above 2600 birds. MG infection is prevalent in the chicken population of Kishoreganj district, Bangladesh. Measures should be taken for successful prevention and control of this disease in Bangladesh.

Seroprevalence of Crimean Congo Hemorrhagic Fever in cows by ELISA in Mosul city

Salam A. Esmaeel; Khder J. Hussain; Mohammad A. Al-Taliby

Iraqi Journal of Veterinary Sciences, 2021, Volume 35, Issue 4, Pages 803-807
DOI: 10.33899/ijvs.2021.128668.1595

Crimean-Congo hemorrhagic fever (CCHF) is described as a tick-borne viral zoonosis highly prevalent in Africa, Asia, Russia and the Balkans within the distribution range of ticks that belong to the genus Hyalomma. This research aimed to verify the seroprevalence of CCHF in cows employing Indirect enzyme-linked immunosorbent assay (I-ELISA) in Mosul city / Iraq, to ​​examine some epidemiological risk factors related to the incidence of CCHF. From October 2019 - September 2020, one hundred eighty-four blood samples were taken from 3-8-year-old cattle of both sexes, from several management systems and origins, from various parts in Mosul city, 10 ml of blood was taken from the jugular vein in test tubes without anticoagulant to obtain the sera for I-ELISA test, while epidemiological data were obtained by interviewing the farm-owners. I-ELISA was applied to detect the antibodies of CCHF in the serum. The overall seroprevalence of CCHF in cows was 40/184 (21.7%). As for the risk factors associated with increased seroprevalence of the disease, an increase in seroprevalence rates was observed at ages 6, 7 and 8 years 30.5%, among females 26.3% and imported animals 27.5%. which showed that the serological prevalence in indoor feeding and outdoor feeding, was not significantly different (p<0.05). This study concluded that there is a higher seroprevalence of CCHF in Mosul city along with many risk factors related to its incidence.

Seroprevalence of Neospora caninum infections in cattle in Kirkuk province

Mohammed Y. Nooraldin; Shaheen A. Jaafar; Abdulmuniem I. Salih

Iraqi Journal of Veterinary Sciences, 2021, Volume 35, Issue 2, Pages 331-334
DOI: 10.33899/ijvs.2020.126832.1394

Neospora caninum was identified as a coccidian parasite as in 1988, before that date it was misclassified as Toxoplasma gondii based on structural similarities. The aim of this study was to determine theseroprevalence of N. caninum in cattle in Kirkuk Province. A total of 185 cattle serum samples were collected randomly. Data about ages, gender and abortion history of females were recorded. Serum samples were examined by using ELISA as a screening test for the detection of anti- N. caninum IgG antibodies of past infection. Results showed that 53 (28.6%) cattle were seropositive infected, with significantly higher seropositive infection of age group >2 years in comparison to other age groups 94.3%. The distribution of N. caninum of total infected cattle showed that the seropositive infection in females were 47(88.7%), which was more than males 6 (11.3%) with a highly significant difference. There were 22(48.8%) aborted cattle out of 47 infected cattle with N. caninum with no significant difference in comparison with the healthy group.